2005 Fiscal Year Final Research Report Summary
Identification of novel stromal factors that regulate β-catenin localization in colorectal cancer --Prevention of invasion and metastasis in colorectal cancer--
| Project/Area Number |
16590589
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Gastroenterology
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| Research Institution | KINKI UNIVERSITY (2005)
Kyoto University (2004) |
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Principal Investigator |
NABESHIMA Motoshige KINKI UNIVERSITY, Hospital, Associate professor, 医学部附属病院, 助教授 (80314178)
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| Co-Investigator(Kenkyū-buntansha) |
MIYAMOTO Shinichi Kyoto University, Department of Gastroenterology and Hepatology, Assistant professor, 医学研究科, 助手 (90378761)
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| Project Period (FY) |
2004 – 2005
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| Keywords | colon / β-catenin / inflammation / tumorigenesis / stroma / IL-6 / Gas6 / cytokine |
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| Research Abstract |
To investigate the role of stromal factors during colorectal tumorigenesis, we determined the factors highly expressed in cancer stroma using laser capture microdissection system and DNA arrays. Among those factors, we analyzed the effects of IL-6, COX-2 and Gas6 in this study.
First, in SW480 cells we observed translocation of β-catenin from the nucleus to the cytoplasm by inhibition of STAT3 which transmits IL-6 signaling. Second, by using co-culture system we demonstrated that local hypoxia up-regulated COX-2 expression in tumor stromal cells. Third, we found that Gas6 activated PI3K/Akt pathway in DLD-1 cells with suppression of cellular apoptosis.
These data suggest a strong association between stromal factors and cancer cell behaviors, and may lead us to novel therapeutic strategies.
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Research Products
(12 results)
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[Journal Article] Hypoxia induced by intestinal epithelial, cells is associated with cyclooxygenase-2 expression in stromal cells through AP-1 dependent pathway.2006
Author(s)
Uenoyama Y, Seno H, Fukuda A, Sekikawa A, Nanakin A, Sawabu T, Kawada M, Kanda N, Suzuki K, Yada N, Fukui H, Chiba T
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Journal Title
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Possible role of REG I{alpha} protein in ulcerative colitis and colitic cancer.2005
Author(s)
Sekikawa A, Fukui H, Fujii S, Nanakin A, Kanda N, Uenoyama Y, Sawabu T, Hisatsune H, Kusaka T, Ueno S, Nakase H, Seno H, Fujimori T, Chiba T
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Journal Title
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] REG Ialpha protein may function as a trophic and/or anti-apoptotic factor in the development of gastric cancer.2005
Author(s)
Sekikawa A, Fukui H, Fujii S, Takeda J, Nanakin A, Hisatsune H, Seno H, Takasawa S, Okamoto H, Fujimori T, Chiba T
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Journal Title
Gastroenterology 128
Pages: 642-653
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] STAT3 is constitutively activated and supports cell survival in association with survivin expression in gastric cancer cells.2004
Author(s)
Kanda N, Seno H, Konda Y, Kanai M, Nakajima T, Kawashima T, Nanakin A, Sawabu T, Uenoyama Y, Sekikawa A, Kawada M, Suzuki K, Kayahara T, Fukui H, Sawada M, Marusawa H, Chiba T
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Journal Title
Oncogene 23
Pages: 4921-4929
Description
「研究成果報告書概要(欧文)」より
